Sadly every guild leader breaks under the pressure and yells at baddies. This isn't a I missed and opportunity kind of deal the guy was stacking archangel to 50 or something while someone was dying, no pw:s or prayer or twist of faith or whatever. World first expect top notch reaction and yes stopping your smite spam while people are dying could be a pretty important reaction.
he clearly went pretty hard, but we don't know how much that priest was baddie (he also tries to give reason for his low output talking about puddle before apologizing)
Besides apologizes are worth nothing for any leader specially if you keep messing up